Hoop-shaving machine



(No Modgl.) 2 Sheets-Sheet. 1.

H. SCHMIDT.

HOOP SHAVING MACHINE. No. 544,382. Patented. Aug. 13, 1895.

INVENTOR- fi -w (No Model.) 2 Sheets8heet 2.

H. SCHMIDT.

HOOP SHAVING MACHINE. No. 544,382. Patented Aug. 13, 1895. Ff

WITNESSES- INVENTORL -f /e/'L/y Sch/midi? an I UNITED STATES PATENT OFFICE.

HENRY SCHMIDT, OF ELGIN, ILLINOIS.

HOOP-SHAVING MACHINE.

SPECIFICATION forming part of Letters Patent No. 544,382, dated August 13, 1895. Application filed May 10,11394. Serial No. 510,727. (No model.)

To all whom it may concern.-

Be it known that I, HENRY SCHMIDT, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Hoop shaving Machines, of which the following is a full, clear, and exact specification.

,My invention relates to machines for shaving barrel, tub, and other similar hoops; and the improvements have more especial reference to means for forming thebevel or taper at the lap end of the hoop.

The primary object of my invention is to provide improved means for effectually beveling and severing the end of the hoopwhile the machine is running at a high rate of speed and while the hoop is also being shaved or reduced to the proper thickness, and to sever the butt-end of the hoop before it reaches the shaving-knives, whereby non-rotating shaving-knives may be employed and the buttend of the hoop will be prevented from sticking between the hoop-guides and such shaving-knives. These ends and objects and certain other objects, described hereinafter, are attained by certain features of novelty in the construction, combination, and arrangement of parts described herein with reference to the accompanying drawings, and more particularly pointed out in the claims.

In the said drawings, Figure 1 is a plan View of a portion of a hoop-shaving machine provided with my improvements. Fig. 2 is a front elevation of the same, partly broken away. Fig. 3 is a plan view of my improvements, drawn to a larger scale, illustrating certain modifications, hereinafter explained. Fig. I is a front elevation thereof; and Figs. 5 and 6 are views similar, respectively, to Figs. 3 and at, showing two knives, as hereinafter explained.

Like signs of reference indicate like parts throughout the several views.

In carrying out my invention I provide the machine at some suitable point, preferably a short distance in advance of the ordinary shaving-knives, with the lap-cutter, which is so arranged that the hoop may be forced against its cutting-edge in a line of movement extending transversely of such edge, or the cutter itself may be forced against the hoop in asimilar direction; and opposed to the edge of this cutter I arrange a stop, whose offioe is to hold the hoop up to the cutter at the proper time, so that no matter how rapidly the hoop may be moving at such time the knife or cutter will be held in engagement until the bevel has been completed. In connection with these elements I employ a guard to preclude the premature engagement of the beveling-cutter. The said stop may be substantially immovable or inactive and vthe cutter arranged to move toward it or the cutter may be inactive and the stop provided with means for forcing it against the hoop, so as to carrythe hoop against the cutter, and such stop may consist of a plain stud or roller or of another knife, whereby the hoop will be reduced on both sides at once; and it is also within the scope of my invention to cushion the inactive one of these members, whether it be the cutter or the stop, whereby such inactive member may recede from the other to relieve excessive pressure and prevent damage.

Referring now to Figs. 1 and 2 of the drawings, which show the preferred form of mechanism embodying these principles of my invention, 1 are the toggle-tongs or grippers which receive and draw the hoop through the machine; 2, the ordinary shaving -knives which reduce the hoop 3 to the proper thick ness; and 4, the guide-springs which guide the hoop between the knives 2. All of these parts may be of the usual or any suitable construction, mounted and arranged upon the main frame 5 of the machine in any suitable manner. The shaving-knives 2, however, are

of the blade-like or non-rotating form, as thisform of knife is less expensive both in initial cost and in subsequent repairing or sharpem ing, and may be more easily adjusted with accuracy and requires less expensive and complicated mechanism for its operation.

A short distance in advance of the guides 4: is arranged the lap cutter or knife 6 for forming the bevel or taper on the end of the hoop as the latter is pulled through the machine by the grippers or tongs 1, as will be understood. In this preferred form of my invention the knife 6 is mounted on ablock 7, with its edge extending substantially across the ICO broad side of the hoop, and the block 7 is mounted upon or secured to the upper end of a pivoted standard or arm 8 pivoted at 9 to the frame of the machine or other suitable support, so that the knife will be capable of moving to and fro; and in order that the knife may offer sutlicient resistance to any force tending to move it away frotn the hoop I provide the block with a suitable cushion, which preferably consists of a spring 10 coiled on a stem 11, which is secured to the back of the lock 7 and extends through a bracket 12, the stem having sufficient play to permit the oscillation of the standard 8. Secured to one side of the block 7 or to the standard 8, slightly in advance of the edge of the knife 6, is the guard 13, whose office is to hold the hoop normally out of contact with the edge of the knifethat is to say, by the term normally out of contact I mean out of contact until thehoop and beveling knife or cutter are brought into engagement by positive means, as herein described. This guard is also provided with lateral guide-fingers 14, which are arranged at an angle to the edge of the knife 6, so as to support and guide the hoop while passing through the machine.

Arranged preferably directly or diametrically opposite the edge of the knife 6 is the stop 15, before referred to, which in this form preferably consists of an anti friction-roller having its axis arranged substantially lengthwise of the cutting-edge of the cutter or knife 6, and between which roller and knife the hoop passes, the guide-fingers 14 being of sufiicient length to project across the space between the knife and the roller, as shown in Fig. 2, and the upright side of the guard 13 being arranged intermediate of the edge of the knife and the roller when viewed from the front, as in Fig. 2, so that while the knife 6 is not in use the guard with its guide-fingers, in conjunction with the roller 15, forms a guide for holding the hoop in proper position for the action of the shaving-knives 2, while at the same time keeping the hoop out of con,- tact with the knife 6 until deflected toward the latter by the stop 15. The edge of the knife and the adjacent edge of the roller, when viewed from the front, as in Fig. 2, are parallel when they meet, so that the hoop will be neatly clipped off at the completion of the bevel.

The roller 15 is mounted upon the upper arm of a lever 16 which is pivoted at 17 to the frame of the machine and is held normally away from the knife 6 by a spring 18 or other suitable means. The lower end of this lever 16 is engaged by a quickly-acting cam 19 for causing its oscillation and the consequent movement of the roller 15 toward the knife 6 at the proper time-that is to say, at about the time the butt-end of the hoop reaches the cutter 6the said arms carrying the knife or cutter 6 and the roller 15 being arranged to oscillate in substantially the same Vertical plane, whereby the edge of the knife will travel in a line substantially in line with the diameter of the roller 15. The cam 19 is mounted upon a shaft 20 suitably journaled on the frame 5, and this shaft derives its motion by any suitable gears or powertransmitting mechanism (not shown, but well understood) from any of the moving parts of the machine, the parts being so timed that the cam 19 will make one revolution and consequently produce one oscillation of the lever 16 at the completion of each outward stroke of the grippers or tongs 1, or in other words when the end of the hoop is about to pass the knife 6. When the lever 16 is thus oscillated and the roller or stop 15 moves inward, the hoop, which has hitherto remained out of contact with the knife 6, will be deflected inward beyond the vertical edge of the guard 13 and pressed firmly into contact with the edge of the knife and there securely confined by the guard with its guide-fingers, the roller, and the knife until the tongs have pulled the hoop past these parts, the knifein conjunction with the roller having in the meantime beveled the hoop and clipped off its end. It will therefore be seen that the lap or bevel may be thus formed accurately and without fail, no matter how rapidly the machine may be operating. It will also be seen that since the cutter for beveling and severing the butt-end of the hoop is arranged in advance of the shaving knives and also in advance of the guides 4 (which are located between the said cutter and the knives 2) the butt-end of the hoop cannot stick between the guides 4 and the knives 2, but will be cut off by the cutter 6, and when such cutter 6 and the roller 15 separate it will drop from the machine.

In the form shown in Figs. 3 and 4 I have transposed the knife 6 and the roller 15, the roller being mounted on the arm 8, and the knife, together with the guard 13, being mounted on the oscillating lever 10, so that the knife in this instance is active and moves into contact with the hoop and crowds the hoop against the roller 15 which is immovable, save the play which is permitted by the spring 10.

In the form shown in Figs. 5 and 6 I have substituted a knife and its block, similar to the knife 6 and block 7, forthe roller shown in Figs. 1 and 2. This extra knife and block are designated by the numerals 6, 7, respectively, the block being formed on or secured to the upper end of the lever 16. Thus in this instance the hoop is shaved or reduced on both sides at once, the knife 6 serving as a stop for holding the hoop up to its position against the knife 6. In this form, however,

-it becomes necessary to employ an extra one of the guards, which is indicated at 18, for holding the hoop from premature engagement with the knife 6. This guard 13 is arranged a little to one side of the guard 13, so as to pass the guide-fingers 14:; it need not, however, be provided with the guide-fingers,

as those on the guard 13 serve the purpose if made of sufficient length. .I do not consider this last form the full equivalent of the other two; I only deem it within the scope of the genus; for the double knife reduces the hoop on. both sides, which is often not desirable, and it is also very apt to split the hoop irregularly and spoil the bevel, which is not the case with the non-cutting stop of the other forms. These are features in favor of the singleknife form over and above its simplicity of adjustment and construction.

I have referred to the roller 15 and knife 6 as a stop in the sense that they resist the rebounding of the hoop from the knife 6 rather than in the sense that they are fixed members, arranged to receive and resist the impact of the active member.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

l. A hoop shaving machine having reciprocating hoop tongs ,or grippers and means for actuating the same, in combination with a cutter arranged to engage the broad side of the hoop, a stop arranged opposite said outter, said stop and cutter being movable with relation to each other, a cam for producing the said relative movement so timed with reference to the movement of the said grippers as to force the stop and cutter together when the butt end of the hoop reaches the said cutter, hoop shaving knives arranged between said cutter and grippers, and guides arranged in advance of said knives between the latter and said cutter, for directing the hoop to the said knives, substantially as set forth.

2. A hoop shaving machine having hoop grippers, means for actuating the same and shaving devices for reducing the thickness of the hoop, in combination with a device for beveling and severing the end of the hoop arranged in advance of the said shaving device and consisting of a knife having its edge presented to the broad side of the hoop, an oscillatory stop arranged opposite the edge of the said knife and a quickly acting cam for periodically forcing said stop against said knife, substantially as set forth.

3. A hoop shaving machine having hoop shaving knives and hoop tongs or grippers and means for actuating the same, in combination with a movable cutter, arranged in advance of saidknives, a guard arranged in advance of the cutter for holding the uncut hoop normally and entirely away from the cutter, and being fixed relatively to and movable with the cutter, and a periodically oscillating stop arranged opposite said cutter and adapted to deflect the hoop into engagement therewith at certain intervals, substantially as set forth.

4. A hoop shaving machine having hoop tongs or grippers andwmeans for actuating the same, in combination with a cutter having its cutting edge arranged to engage the shaving knives and between the latter and said cutter; whereby the butt end of the hoop will be cut off before reaching the shaving knives and thereby prevented from sticking between said knives and guides, substantially as set forth. I

5. A hoop shaving machine having hoop tongs or grippers and means for actuating the same, in combination with a cutter having its cutting edge presented to the broad side of the hoop, a stop arranged opposite said cutter, said stop and cutter being movable with relation to each other and means for moving one toward and from the other for beveling and severing the end of the hoop, whereby the severed end will be permitted to drop from the machine when the cutter and stop separate, hoop shaving knives arranged between said cutter and grippers, and hoop guides arranged between said shaving knives and said cutter, substantially as and for the purpose set forth.

6. A hoop shaving machine having in combination, hoop tongs or grippers, hoop shaving knives for reducing the hoop, a pair of pivoted arms arranged to oscillate in substantially the same plane, a cutter for beveling the hoop mounted upon one and a stop mounted upon the other of said arms in advance of the shaving knives, one of said arms being-in the form of a lever, means for oscillating said lever to force the stop and cutter together for beveling and severing the end of the hoop, means for oscillating said lever in the opposite direction to cause said stop and cutter to separate, the other of said arms being cush ioned, and a guard arranged to normally hold the hoop out of contact with said cutter, substantially as set forth.

7. A hoop shaving machine having in combination hoop tongs or grippers, hoop shaving knives,-a pair of pivoted arms arranged to oscillate in substantially the same plane, a cutter for beveling the hoop mounted upon one and a stop mounted upon the other of said arms, in advance of the shaving knives; one of said arms being in the form of a lever, a quickly acting cam for oscillating said lever in one direction, a spring for oscillating said lever in the opposite direction; and a guard arranged to normally hold the hoop out of contact with said cutter, substantially as set forth.

8. A hoop shaving machine having in combination hoop shaving knives, a pair of piv= oted arms, a cutter for beveling the hoop mounted upon one and a stop mounted upon the other of said arms in advance of said shaving knives, one of said arms being in the form of a lever, means for oscillating said lever in both directions, a stem projecting from the other of said arms, a bracket through which said stein projects, a spring on said stem between said bracket and arm, and a guard arranged to normally hold the hoop out of contact with said cutter, substantially as set forth. 1o

HENRY SCHMIDT. \Vitnesses:

F. A. HOPKINS, EDNA B. JOHNSON. 

